Another way to approach the relationship of performance and the internet is to use the internet as the performance medium. Its pretty abstract to me, but you can learn more about that and other high-concept artistic endeavors over at the turbulence.org blog.
I actually saw a presentation from one of the organizers, Helen Thorington, at a NYSCA-sponsored panel on Arts+Technology I attended a few months back. I’ve got to be honest, it was a little like when I took advanced physics in high school: everything almost made sense, I was always just on the verge of getting it, when it slipped from my grasp. But it certainly seemed cool. Definitely challenging and mind-expanding. So check it out.